Senior Unified Communications Engineer – Cisco CUCM & Microsoft Teams

Business Justification/Executive Summary

Client is seeking a skilled network engineer specializing in Unified Communications (UC) to design implement support and optimize enterprise voice video messaging and collaboration services.
This role will support multiple platforms including Cisco Unified Communications Manager (CUCM) Cisco Webex Microsoft Teams and enterprise calling solutions.
The engineer will work closely with network security telecom infrastructure and service desk teams to maintain reliable secure and high-quality communication services.


Position Summary

Key Competencies:

UC architecture and operations

Network and voice troubleshooting

Cloud calling and hybrid integrations

Security


Key Responsibilities

Design deploy configure and support UC platforms including:

o CUCM

o Cisco Unity Connection

o Cisco Webex and Webex Calling

o Cisco Session Border Controllers and voice gateways and

o Microsoft Teams Phone.

Support enterprise voice services including:

o SIP trunks

o PSTN connectivity

o Direct Routing

o Operator Connect and

o Cloud calling.

Configure the following:

o Dial plans

o Route patterns

o Calling policies

o Hunt groups

o Auto attendants

o Call queues

o Voicemail and

o Number management.

Administer Microsoft Teams voice features through Teams Admin Center and PowerShell.

Troubleshoot voice video messaging and collaboration issues across LAN WAN internet and cloud environments.

Analyze call quality using latency jitter packet loss MOS QoS and platform-specific diagnostic tools.

Configure and maintain network services that support real-time communications including QoS VLANs routing DNS DHCP NAT and firewall rules.

Support voice gateways SIP trunks SBCs desk phones conference-room systems headsets and soft clients.

Manage user provisioning licensing migrations onboarding and offboarding for calling and collaboration services.

Monitor platform availability capacity performance and call quality.

Perform system upgrades patches certificate renewals backup validation and lifecycle management.

Coordinate incident response root-cause analysis change management and problem resolution.

Maintain technical documentation network diagrams dial plans configuration standards and operational procedures.

Work with telecommunications carriers and technology vendors to resolve service issues.

Participate in an on-call rotation and provide support for critical incidents when required.


Requirements

General Qualifications

Bachelors degree (or equivalent professional experience) in:

o Information technology

o Networking

o Telecommunications or

o Related field(s)

Strong analytical documentation communication and incident-management skills


General Technical Skills

At least three (³3) years of experience supporting enterprise networking and/or UC environments

Strong knowledge of SIP RTP SRTP SDP TLS codecs dial plans and PSTN technologies

Solid understanding of TCP/IP routing switching VLANs QoS DNS DHCP NAT VPNs and firewalls

Experience diagnosing voice-quality and connectivity issues using packet captures call logs and monitoring tools

Familiarity with identity authentication certificates and cloud service integrations


Specific Technical Skills

Experience administering Microsoft Teams Teams Phone Direct Routing and/or Operator Connect

Hands-on experience with Cisco collaboration technologies including but not limited to:

o CUCM

o Unity Connection

o Webex

o CUBE and/or

o Cisco voice gateways


Desired Skills

Experience migrating from on-premises telephony to cloud calling platform(s) including but not limited to Microsoft Teams Phone and Webex Calling

Knowledge of hybrid Cisco and Microsoft collaboration environments

Experience with PowerShell APIs Python and/or other automation tools

Familiarity with ITIL practices and enterprise change-management processes

Relevant certifications such as:

o Cisco CCNA CCNP Enterprise and/or CCNP Collaboration

o Microsoft 365 Certified: Teams Administrator Associate

o Microsoft Certified: Teams Voice Engineer Expert (or current equivalent)

o ITIL Foundation